Cloning in animals

Cards (7)

  • Variation in species can be generated by genetics
  • Mutations arise spontaneously and can sometimes lead to genetic disorders or death
  • Genes can be inserted into a genome through genetic engineering
  • The most basic technique of animal cloning involves adult cell cloning
  • Dolly the sheep was the first mammal to be cloned in the UK in 1996 and died in 2003
  • Dolly was produced using the nucleus from an udder cell, although other cells such as skin cells may also be used
  • The method for adult cell cloning:
    • The nucleus is removed from an unfertilised egg cell
    • The nucleus from an adult body cell, such as a skin cell, is inserted into the egg cell
    • An electric shock stimulates the egg cell to divide to form an embryo
    • These embryo cells contain the same genetic information as the adult skin cell
    • When the embryo has developed into a ball of cells, it is inserted into the womb of an adult female to continue its development